Fourth seeded Andy Roddick of America edged past top-seeded compatriot John Isner 6-4, 6-7(5), 6-4 inthe semi-final match at the 2012 Atlanta Tennis Championships.

"I'm excited," Roddick said. "I have a chance to win my second tournament in three tournaments. I took care of my serve. I did what I was supposed to do. You aren't going to beat John if you get broken a lot."

Even though Isner arrowed 26 aces in the match he couldn't turned the tide in his favour.

''It's pretty disappointing,'' Isner said. '' It's tough. I've always wanted to win this tournament, but it just wasn't to be. There's really no shame in losing to either of those guys. That's for sure.''

In the final Roddick takes on Gilles Muller of Luxembourg, who defeated eighth seeded Japanese Go Soeda 6-4, 6-3.